Precice ColumnWidth in centimeters

[titof_fr]

Hello.

This is my first post. Sorry to be able to speak english only like a french.

The purpose of this little Work done today was first to be able to print a sort of ruler in centimeters.
Then I wrote this more explicit example of 4 different sizes columns.
I tried to write all explanations in comments.

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[FDibbins]

I have a feeling that you wont be able to set columns to exact cm widths, for a few reasons...
1. column widths are set to pixels, with the default width 8.43 characters, which corresponds to 64 pixels
2. the screen resolution and aspect ration may also throw things off

[titof_fr]

Hi.
You are surely right with screen representation.
The purpuse was to be able to manage columns sizes in centimeters, and have a full width set to an exact width on paper (with dPrinterCorrecCoef),
even if inside columns proportions don't have a hundredth of a millimeter precision.
My printed ruler is what I expect.
JC